OESA-2026-4124 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a...

Authentication Bypass by Primary Weakness

Overview Affected versions of this package are vulnerable to Authentication Bypass by Primary Weakness in the connection reuse process when a different Native CA Store setting is used than the one originally configured. An attacker can compromise the integrity of HTTPS connections by exploiting t...

AZL-99855 CVE-2026-80231 affecting package rust 1.90.0-10

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

AZL-99831 CVE-2026-80231 affecting package rust 1.75.0-30

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

AZL-99807 CVE-2026-80231 affecting package mysql 8.0.46-1

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

AZL-99876 CVE-2026-80231 affecting package tensorflow 2.16.1-11

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

EUVD-2026-72169

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

CVE-2026-80231 native CA store conn reuse

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

CVE-2026-80231

A vulnerability in libcurl allows the library to incorrectly reuse an existing HTTPS connection for a given hostname when there is a mismatch in the Native CA Store setting (CURLSSLOPT_NATIVE_CA) compared to the initial connection. Additionally, research indicates a related issue where a TLS sess...

CVE-2026-80231 native CA store conn reuse

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

CVE-2026-80231 native CA store conn reuse

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

CVE-2026-80231

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

CURL-CVE-2026-80231 native CA store conn reuse

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

native CA store conn reuse

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting CURLSSLOPTNATIVECA than when the connection was created...

PT-2026-84656

Name of the Vulnerable Software and Affected Versions curl affected versions not specified Description A flaw in libcurl causes the software to incorrectly reuse an existing HTTPS connection setup for a specific hostname, even if a different Native CA Store setting CURLSSLOPT NATIVE CA is used...

curl: CVE-2026-80231: native CA store conn reuse

Summary nativecastore is in struct sslconfigdata line 73 of vtlsconfig.h, not sslprimaryconfig. matchsslprimaryconfig does not compare it. On macOS, Curlssleasyconfigcomplete line 258 auto-sets nativecastore = TRUE when no custom CA is configured — without modifying ssloptions. When CURLCABUNDLE ...

curl: CURLOPT_PROXY_CAINFO_BLOB silently activates native CA store on Apple builds

Hi all, CURLOPTPROXYCAINFOBLOB introduced 7.77.0 never sets proxyssl.customcablob. On USEAPPLESECTRUST / CURLCANATIVE builds this causes curl to silently fall back to the system keychain for proxy TLS verification, nullifying the caller's blob-only trust policy. --- Root cause lib/setopt.c handle...